Revert of Check in a simple pure-python based Markdown previewer.

third_party/Python-Markdown/markdown/extensions/sane_lists.py

-"""
-Sane List Extension for Python-Markdown
-=======================================
-
-Modify the behavior of Lists in Python-Markdown to act in a sane manor.
-
-See <https://pythonhosted.org/Markdown/extensions/sane_lists.html>
-for documentation.
-
-Original code Copyright 2011 [Waylan Limberg](http://achinghead.com)
-
-All changes Copyright 2011-2014 The Python Markdown Project
-
-License: [BSD](http://www.opensource.org/licenses/bsd-license.php)
-
-"""
-
-from __future__ import absolute_import
-from __future__ import unicode_literals
-from . import Extension
-from ..blockprocessors import OListProcessor, UListProcessor
-import re
-
-
-class SaneOListProcessor(OListProcessor):
-
-    CHILD_RE = re.compile(r'^[ ]{0,3}((\d+\.))[ ]+(.*)')
-    SIBLING_TAGS = ['ol']
-
-
-class SaneUListProcessor(UListProcessor):
-
-    CHILD_RE = re.compile(r'^[ ]{0,3}(([*+-]))[ ]+(.*)')
-    SIBLING_TAGS = ['ul']
-
-
-class SaneListExtension(Extension):
-    """ Add sane lists to Markdown. """
-
-    def extendMarkdown(self, md, md_globals):
-        """ Override existing Processors. """
-        md.parser.blockprocessors['olist'] = SaneOListProcessor(md.parser)
-        md.parser.blockprocessors['ulist'] = SaneUListProcessor(md.parser)
-
-
-def makeExtension(*args, **kwargs):
-    return SaneListExtension(*args, **kwargs)